"I've no idea," he replied shortly.
"I can't make up my mind about it. Somehow, it doesn't seem possible that any one of the people suspected can have done such a thing."
"Nevertheless, it's obvious that one of them must have."
"Couldn't it have been someone quite different? Perhaps someone we don't even know about?"
"My dear, I'm not a detective. It doesn't seem very likely to me."
,It sounds ridiculous, but I do rather wish you hadn't been out on a case at the time. I feel you might have been more use than Dr Hinchcliffe."
"Rubbish! Your cousin was dead before Hinchcliffe got there."
"I didn't mean that. Something might have struck you. You're much cleverer than Dr Hinchcliffe. Everyone says so."
"Very gratifying, but if you're imagining that I could have done anything more than he did, you're quite wrong, Mary."
They were interrupted at this moment by Ermyntrude, who bounced out of the morning-room, with Inspector Hemingway on her heels. "Oh, there you are, love!" she exclaimed. "Look, Mary, isn't it a fact that Harold White was in the gun-room on Saturday, all by himself?"